Search found 781 matches

by eslapion
Fri Aug 16, 2019 4:39 am
Forum: BASIC
Topic: Need help with composing music in BASIC
Replies: 1
Views: 28

Re: Need help with composing music in BASIC

I just copy-pasted that listing in WinVICE and it works well...

Any technical issues with your C64 ?
by eslapion
Thu Aug 15, 2019 11:14 am
Forum: Chit Chat
Topic: Videos and photos from CommVEx 2019
Replies: 8
Views: 40

Re: Videos and photos from CommVEx 2019

Nice to see the face of Jeri Ellsworth. Haven't heard of her in a long time.
by eslapion
Sun Aug 11, 2019 7:43 am
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 65
Views: 2276

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

banman wrote:
Sat Aug 10, 2019 10:53 am
I have come across some sockets that have super long legs on them.
It's wire wrapping sockets.
by eslapion
Thu Aug 08, 2019 5:10 pm
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 65
Views: 2276

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

Would it be possible to make a stand alone circuit that would trigger an E/PROM in such a way that we could observe the output on an oscilloscope (i.e. the Glitch)? That's not as easy as it sounds. The reason why a glitch on outputs will appear depends on a combination of things. The first one is t...
by eslapion
Wed Aug 07, 2019 8:08 pm
Forum: News and Announcements
Topic: Melon64 Donations via PayPal
Replies: 2
Views: 159

Re: Melon64 Donations via PayPal

I know there's no obligation to donate but I am the only one! Sure feels lonely!
by eslapion
Thu Aug 01, 2019 6:49 am
Forum: For Sale
Topic: SaRuMan-VDC 64k RAM for C128 VDC
Replies: 0
Views: 40

SaRuMan-VDC 64k RAM for C128 VDC

I am now offering a new type of 64k RAM expansion for the VDC. The traditional type of 64k expansion board for the VDC simply disconnects the two 16k x 4 DRAM chips from the mainboard and offers a pair of sockets for two 64k x 4 DRAM chips. Francis's new type is much smaller, consumes much less powe...
by eslapion
Thu Aug 01, 2019 6:32 am
Forum: Software
Topic: Promenade C1 software
Replies: 6
Views: 81

Re: Promenade C1 software

Hmm, 10 years ago... well, it couldn't have been John, because he passed away in 2003. When he passed away, the business was essentially gone. If the creator of the C1 had been dead then it would make sense the family would prefer not to be harassed by (many?) people trying to get information or pe...
by eslapion
Thu Aug 01, 2019 6:22 am
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 65
Views: 2276

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

Wow! What a stockpile! These sockets are worth money! There is a varied selection of what I strongly believe are original 27512 EPROMs. This will provide a good test reference for checking out the Glitch when I manage to get the oscilloscope up and running.... I think having a genuine ST 27C512 very...
by eslapion
Wed Jul 31, 2019 2:37 am
Forum: Software
Topic: Promenade C1 software
Replies: 6
Views: 81

Re: Promenade C1 software

...they simply responded by asking not to be contacted (disturbed) again... When was this? By they, do you mean Judy? I can't know that. I know there was a gentleman who made clones of the C1 about 10 years ago. He also made adapters for the C1 which would allow the programming of much larger capac...
by eslapion
Tue Jul 30, 2019 5:23 pm
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 65
Views: 2276

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

@banman
A nice treasure trove! One man's trash is another man's treasure!

Just be careful with those 27128/27C128 because most of them require different programming voltages and algorithms.

In there, I see:
27128, 27128A, 27C128, 27128D and all are programmed differently.